I've figured out the name and location of the file for two browsers
The file name and location if you used Chrome is
File Name: 00000001.sol
Google Chrome: C:\Users\(Username)\AppData\Local\Google\Chrome\User Data\Default\Pepper Data\Shockwave Flash\WritableRoot\#SharedObjects\NNFVAMQ5\#localWithNet\##7EF54A21D62AC55B
and the file name and location if you used internet Explorer is
File Name: mydata.sol
Internet Explorer: C:\Users\(Username)\AppData\Roaming\Macromedia\Flash Player\#SharedObjects\X8J3W2W6\#localWithNet\(The name of the folder where the game is stored on your pc)
if you used Firefox, Microsoft Edge, or some other browser than I guess we are out of luck.
Firefox has a similar path, just in the localhost folder instead of #localWithNet. Be aware that the folder after #SharedObjects will be a random string of alphanumerical characters, so it's not going to be the same for everyone. File is still mydata.sol.